doubt

Asked by akhileshnarayanan | 13th Feb, 2010, 08:06: PM

Expert Answer:

LHS = (cosecΦ-cotΦ)2

= (1/sinΦ - cosΦ/sinΦ)2

= (1-cosΦ)2/sin2Φ

= (1-cosΦ)2/(1-cos2Φ)

= (1-cosΦ)2/(1-cosΦ)(1+cosΦ)

= (1-cosΦ)/(1+cosΦ) = RHS

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Answered by  | 13th Feb, 2010, 08:12: PM

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